The HHT Pilot Assembly Natural Gas 446-512A is an excellent replacement for Heat N Glo Fireplaces and Gas Log Sets.Replacement for Part Number: Heat N Glo Part # 446-512A, # HSRV 446-512A, SRV 446-512A.Compatibility:➤ Heat N Glo Gas Fireplaces Parts Models: 36DV88, 4000GDV, 4000INC, 4000INS, 4000TV, 4000WH, Bay Insert, DVT Insert, DVT-STOVE - Pre May 1996, SL Insert, SL Insert-B, Bay 30, Bay-GDV-95 - Pre May 1996, Bay GDV, L-CORNERDV, L-CORNERTV, L-CORNERTV-DSI, PIER-DVT, PIER-GDV, PIER-TV - Standing Pilot Only, PIER-TV-DSI - Standing Pilot Only, R-CORNERDV, R-CORNERTV, R-CORNERTV-DSI, ST-38GTV, ST-38GTV-DSI, ST-42FL, ST-42FL-DSI, ST-42GTV, ST-DVT, ST-GDV, ST-TR - Pre May 1996, ST-TR-DSI - Pre May 1996, 5000GDV - Robert Shaw valve only, 5000TV, 6000ARCH, 6000CF, 6000DVT, 6000DVTFL - Pre serial # 12614, 6000FLS - After Feb 10, 95, 6000GDV, 6000GDVFL - Pre Date Code 296 - Non 30 sec valve, 6000GDVFL-NF - Pre Date Code 296 - Non 30 sec valve, 6000SGDV, 6000TV & HSI, 6000TVFL, 6000TVFL-NF, 8000DVT, 8000DVTFL - Pre date code 2/96, 8000DVTFL-DSI - Pre date code 2/96, 8000GDV, 8000GDVFL - Pre date code 2/96, 8000GDVFL-DSI - Pre date code 2/96, 8000TV, 8000TVFL, 8000TVFL-DSI, CFX-36TSP, GAS36TV, GRAND-50, SL-32 - Pre Mid 1996, SL-32-DSI - Pre Mid 1996, SL-36-NF, SL-36TV, SL-42TV, SL-42TV-DSI, SL-2000, SL-5500, SL-5500S, SL-TVBLD, ST-FLS, GS-4000.➤ Heat N Glo Gas Log Sets Models: CFL-18NG, CFL-18NG-B, CFL-24NG, CFL-24NG-B, CFL-30NG-B, GES-100NG, GLS-18NG, GLS-24NG, ST-CFL-24NG, ST-GLS.Advantage & Benefit:☞ High quality materials☞ Easy to install☞ Long lasting use☞ 1 year warranty